deserve
‘meritorious service; entitled to earn or claim; to be worthy of’
Lexical development traced from the Tamil root:
E. dyserve, disserve, discerve, descerve < O.F. deserver < Lat. deservire ‘serve well, serve zealously’ <de- ‘completely’ + servire ‘be a servant, be in service, be enslaved,’ related to servus ‘slave’ < Proto-Italic serwo- ‘shepherd,’ serwā- ‘observation’ < zuhv < seruo- < Tamil iṟai